Manufacturing method of nanometer titania formaldehyde-reduced bamboo plywood

A nano-titanium dioxide, bamboo plywood technology, applied in the direction of titanium dioxide, titanium oxide/hydroxide, nanotechnology, etc., can solve the problems of complex operation, easy agglomeration, uneven distribution of titanium dioxide, etc., to achieve simple production process, easy operation, and realization The effect of industrial production

Inactive Publication Date: 2018-05-04
ZHEJIANG FORESTRY ACAD
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  • Description
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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing titanium dioxide-wood and bamboo composite materials, such as uneven distribution of titanium dioxide, easy agglomeration, and complicated operation, the present invention

Method used

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Embodiment Construction

[0023] The present invention will be further described below.

[0024] A kind of manufacture method of nano-titanium dioxide reducing formaldehyde bamboo plywood, comprises the following steps:

[0025] ①Sulfonation treatment of nano-titanium dioxide

[0026] Nano titanium dioxide (TIO 2 ): purity 99.8%, anatase type, hydrophilic and lipophilic type, nanoparticles 25nm.

[0027] Poly(4-styrenesulfonic acid) ammonium salt solution, namely Poly(4-ammonium styrene-sulfonic acid)), also known as pas solution, has a mass fraction of 30%, molecular weight Mw≈20000, and is soluble in water.

[0028] The sulfonation treatment of nano-titanium dioxide of the present invention is realized through the following steps:

[0029] The titanium dioxide nanometer material is dispersed in a poly(4-styrenesulfonic acid) ammonium salt solution (alias pas solution) with a mass fraction of 20-40%. The solution is ultrasonically dispersed in an ultrasonic oscillator, and then left for 4 to 20 ho...

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Abstract

A manufacturing method of nanometer titania formaldehyde-reduced bamboo plywood includes the following steps of (1) sulfonation treatment of nanometer titania, (2) cold plasma treatment of bamboo veneers, (3) preparation of the bamboo veneers with the surfaces loaded with the nanometer titania, and (4) preparation of the nanometer titania formaldehyde-reduced bamboo plywood, specifically, the prepared bamboo veneers with the surfaces loaded with the nanometer titania are cut into a certain size according to requirements, single-face gluing is conducted by adopting urea resin or melamine urea-formaldehyde resin, longitudinal and transverse crossing laying is conducted according to the laying requirements of common plywood, the veneers are displayed for 10-30 min after laying, and then the veneers are subjected to hot pressing by being placed in a hot pressing machine, so that the nanometer titania formaldehyde-reduced bamboo plywood is obtained. According to the manufacturing method ofthe nanometer titania formaldehyde-reduced bamboo plywood, the titania is distributed evenly, operation is simple, the loading quantity is large, and the titania is firmly combined with wood and bamboo materials.

Description

technical field [0001] It belongs to the field of composite material preparation technology, and the patent classification number is B01J. The invention loads nano-titanium dioxide material on the surface of the bamboo veneer, thereby preparing the bamboo plywood, which has the function of photocatalytically degrading formaldehyde, and can be used in the production and manufacture of furniture boards. Background technique [0002] Wood is recognized as a green material in the world. Because of its pleasing color, elegant and beautiful texture, good touch, high strength-to-weight ratio and easy processing, wood has been the material of choice for human furniture production and interior decoration since ancient times. Among the four major materials in the world today - wood, plastic, steel, and cement, it is the only resource that is both renewable and recyclable. It can be said that whether it is now or in the future, wood is always an ideal consumption choice for people. I...

Claims

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Application Information

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IPC IPC(8): B27K5/00B27K3/00B27K3/02B27K5/04B27K9/00B27D1/08C01G23/08B82Y30/00B82Y40/00
CPCB27K5/002B27D1/08B27K3/007B27K3/02B27K5/04B27K9/002B27K2240/00B27K2240/20B82Y30/00B82Y40/00C01G23/08C01P2004/64
Inventor 王洪艳李琴袁少飞张建
Owner ZHEJIANG FORESTRY ACAD
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